Audio speaker



FIG. 1 is a perspective view of an audio speaker, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a right view thereof.

The broken line portions show unclaimed subject matter only and form nopart of the claimed design.

CLAIM The ornamental design for an audio speaker, as shown anddescribed.